Peanut Butter Banana Baked Oatmeal



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This delicious peanut butter banana baked oatmeal features the best oatmeal combo ever — peanut butter and banana. You’ll love prepping this easy baked oatmeal for the week.

One of my favorite oatmeal recipes to date is this stove top recipe for peanut butter banana chia oatmeal. Peanut butter and banana are simply the best oatmeal combo in my personal opinion and I’m honestly surprised it took me so long to come up with a baked oatmeal recipe that has both!

Slice of peanut butter banana baked oatmeal on a plate with a fork and topped with peanut butter drizzle and sliced bananas.

I thought it would be fun to kick off the New Year with a new baked oatmeal recipe that’s perfect for all your healthy eating goals. No matter how much you indulged over the past few weeks (or months!) you can always decide to make a change. Start with one small change… like eating a healthy breakfast every day!

Glass dish with peanut butter banana baked oatmeal. Baked oatmeal is drizzled with peanut butter and slices of bananas.

Why is Eating Breakfast Important?

Breakfast is often deemed the most important meal of the day? Isn’t it funny that it’s probably the most skipped meal of the day? So why is it so important anyway?

  • Kick start your metabolism – The earlier you eat in the day, the more calories you’ll burn! Seriously.
  • Energy – Food=fuel. Eating breakfast will give you energy to get important tasks done all day long.
  • Concentration – Do you notice that you can’t focus on anything but food when you’re hungry? THAT is why eating breakfast improves concentration throughout the day!
Square baking dish with peanut butter banana baked oatmeal with a slice taken out of it.

Simple Breakfast Idea

Eating breakfast doesn’t have to be complicated. If you’ve been following Eating Bird Food for awhile, you know I’m a big fan of baked oatmeal. They’re the perfect meal prep recipe! Make this simple peanut butter banana baked oatmeal on Sunday and have delicious, healthy and quick breakfasts to enjoy all week long. You can eat it cold or pop it in the microwave or toaster oven for a bit to warm it up before enjoying. The perfect on-the-go breakfast.

Ingredients for peanut butter baked oatmeal in a mixing bowl.

Peanut Butter Banana Baked Oatmeal Recipe

I sound like a broken record but this recipe is so simple to make! Start by mixing the dry ingredients together in a large bowl. Mix in the wet ingredients as well as two sliced bananas. Stir well to combine everything. Pour the mixture into a baking dish that has been sprayed with cooking spray and top with additional banana slices. Bake until golden brown, drizzle with more peanut butter and enjoy! You just made the best gluten-free, dairy-free breakfast around. 😉

Can You Make Baked Oatmeal Ahead of Time?

Yes, you can totally make baked oatmeal ahead of time. There are two options that work really well.

Option 1: Bake and Then Reheat Before Serving

  1. Prepare baked oatmeal as the recipe suggests. Once baked, let the oatmeal cool, cover the baking dish and place in the fridge. You can do this 1-2 days in advance.
  2. When you’re ready to serve, take oatmeal dish from fridge, cover with foil and reheat in a 350°F oven for about 20 minutes. For individual portions, set toaster oven to 350°F and bake for 5-10 minutes or reheat in the microwave for 1 minute.

Option 2: Prep as Much as You Can Without Baking

  1. Mix together your dry ingredients in a bowl, cover and let sit out on the counter until morning.
  2. Mix together all the wet ingredients in another bowl, cover and store in the fridge until morning.
  3. In the morning, simply mix the wet and dry ingredients together, pour oatmeal mixture into your prepared baking dish and bake as recipe suggests.
Spatula lifting a slice of peanut butter banana baked oatmeal.

More Baked Oatmeal Recipes to Try

More Oatmeal Recipes

Be sure to check out all of my baked oatmeal recipes as well as all the popular oatmeal recipes here on EBF.

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4.75 from 56 votes

Peanut Butter Banana Baked Oatmeal

This delicious peanut butter banana baked oatmeal features the best oatmeal combo ever — peanut butter and banana. You’ll love prepping this easy baked oatmeal for the week.
Prep Time: 10 minutes
Cook Time: 30 minutes
Servings: 6


  • 2 cups old fashioned rolled oats
  • 1/4 cup pure maple syrup
  • 1 teaspoon baking powder
  • 1/2 teaspoon ground cinnamon
  • 1/2 teaspoon sea salt
  • 2 cups unsweetened almond milk
  • 1 Tablespoon ground flaxseed
  • ¼ cup natural peanut butter, plus more for serving
  • 2 teaspoons pure vanilla extract
  • 3 ripe sliced bananas, divided
  • cooking spray


  • Preheat the oven to 375°F.
  • Spray an 8-inch square baking dish with cooking spray.
  • In a large bowl, mix together the oats, baking powder, cinnamon, and salt.
  • Add in the milk, maple syrup, flaxseed, peanut butter, vanilla and 2 sliced bananas. Stir well to combine.
  • Carefully pour oatmeal mixture into the prepared baking dish and top with banana slices. 
  • Bake for 30 to 35 minutes, until the top is nicely golden. Remove from the oven and let cool for a few minutes. Portion and serve. Drizzle additional peanut butter on top and serve with fresh banana slices. 
  • For storage: store in the refrigerator in an airtight container for up to 4 days.
  • To reheat: To reheat the whole baked oatmeal, cover with foil and reheat in a 350°F oven for about 20 minutes. For individual portions, set toaster oven to 350°F and bake for 5-10 minutes or reheat in the microwave for 1 minute.


Serving: 1/6 of recipe | Calories: 270kcal | Carbohydrates: 44g | Protein: 7g | Fat: 9g | Sodium: 277mg | Fiber: 6g | Sugar: 18g

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Breakfast
Cuisine: American
Keyword: banana peanut butter baked oatmeal
Did you make this recipe?Mention @eatingbirdfood and tag #eatingbirdfood!

About Brittany

Hey there, I’m Brittany, the creator of Eating Bird Food, cookbook author, health coach and mama of two littles. Here you’ll find quick and easy recipes that make healthy fun and enjoyable for you and your family!

More about Brittany
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Recipe Rating


  1. 5 stars
    Love this recipe! I made it this morning and added some Enjoy Life chocolate chips! It was amazing!

  2. 5 stars
    Love this just like I love most of your recipes. My one year old devours this for breakfast!
    (I usually reduce the amount of maple syrup when making it for her but that’s the only change I make)

    1. Woo!! So pumped this baked oatmeal has been a success, Sarah! Thanks so much for the review and star rating. It means so much to me!

    1. Happy to hear you enjoyed this oatmeal, Amber! Love the addition of blueberries as well. Thanks for the review! I so appreciate it :).

  3. 5 stars
    Husband loves this. I’m not a big PB girl, myself. By request, he asked me to double the PB. Now I’ve been making this for him and the berry erosion of baked oatmeal for myself. The only thing I do differently is add 4 eggs (because we love them) and I think my non-measured cinnamon would be like 1T worth. I’ve made these like 4 weeks in a row. Such easy breakfasts. Thanks!

    1. YUM! I am so glad you and your husband are loving these baked oatmeals, Amy. Thank you so much for coming back and sharing your review & star rating, I really appreciate it! p.s I totally knew what you meant lol!

  4. 5 stars
    Just love this recipe, thank you. I make it every other week but mash my bananas as they’re frozen. It seems to work well though!

    1. Amazing! I am so glad to hear that you are loving this recipe, Jane. Thank you for your review & star rating, it means so much to me!

    1. Hi Ashley – Adding protein powder could potentially dry out the oatmeal to much (especially depending the protein powder), so you would need to add more liquid. You could make my Protein Baked Oatmeal and add bananas and peanut butter (the best combo) hope that helps!

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